Feed device for liquids.



J. WILLIAMS, JR. BED DEVICE FOR LIQUIDS.

ABPLIGATION FILED MAY 81, 1912.

Patented Jan. 13,1914.

. LIUMQSSU UNITED STATES PATEN OFFICE.

' JOSEPH WILLIAMS, JR., PITTSBURGH, PENNSYLVANIA, ASSIG-NOR OF ONE-THIRDT0 MELLVILLE'C. THOMPSON.AND ONE-THIRD To DAVID S. IRVIN, BOTH OF PIT'ISBUBGH, PENNSYLVANIA.

FEED DEVICE FOR- LIQUIDS.

Patented J an. 13, 1914:-

Application filed Maytil. 1912. I Serial No. 700,794

'1 '0 alt i i/10m it may concern:

Be it known that I, JOSEPH WILLIAMS, J12, a citizen of the UnitedStates, residing lowing is a specification.

My lnvention has for its ob ect to provide means for supplying ameasured quantity of liquid to a boiler or other utilizing apparatus, inconnection with a forced feed mechanism, as an in ector.

It comprises a reservoir for the liquid provided with circulatingconduit pipes adapted for connection with an injector or the like forinducing a forced feed by suction, a controlling device for regulatingthe rate of flow, an observation aperture, one or more check valves,supply and exhaust openlugs and other features of construction as shallbe more fully hereinafter described.

The device is particularly designed for the purpose of supplying aboiler compound in limited and regulable quantities whereby the compoundmay be charged, with the supply water, into the boiler.

The drawings illustrate one preferred form of construction in whichFigure 1 is a view of the device in side elevation. Fig. 2 is a vertical-sectional view on the line II II of Fig.3. Fig. 3 is a plan view. Fig.4 is a cross section on the line IV IV of Fig. '2. j.

The reservoir 2 for the liquid compound is made of sheet or; cast metal,preferably in cylindrical form hav'ing a top 3 and bottom 4. Theinterorfiuid-containing cavity 5 is filled with the liquid'through acharging opening 6 having a removable cap 7, and may be drained by acock or valve 8.

- Extending vertically from the top to the bottom of the reservoir andcentrally arranged thereof is a tubular partition 9 probeing connectedwith the force feed device,

as an injector or siphon or the'like. The

. pressure.

: upper end of pipe 11 projects through the cover 3, or a cap 15thereon, and is connected with the lower end 16 of a circularobservation chamber 17. Said chamber is provided at each side with glassdisks 18, by which the interior cavity and rate of flow or drop may beobserved, said glassdisks being secured to each opposite face of'theobservation chamber by rings 19. t

A supply pipe 20 extends downwardly to within a short distance of thebottom 4 of the reservoir 2, preferably having a terminal check valve 21at its lower end. which, like check valve 12, seats'against backpressure so as to prevent reverse flow or pressure to the interior ofthe reservoir from the injector, due to any cause, such as divertedsteam This check valve is useful in maintaining a column. of liquidabove the valve. Pipe 20 extends upwardly through a suitable stuffingbox 22 and communicates with the interior of observation chamber 17 andsupply pipe 11, through an elbow coupling 23 and a valve casing 24having a. downwardly extending terminal dropper 25. A needle 'valve 26is adjustably mounted with relation to the tapered interior of terminal25 by a threaded stem 27, mounted in the valve casing 24, having asuitable stuifing box 28 and finger terminal 29. By this constructionthe rate of induced flow of the liquid compound, actuated by suction,may be readily and accurately controlled.

For the purpose of indicating the level of the liquid compound withinthe reservoir, an observation or sight glass tube -30 is mounted at oneside of the reservoir having co munication with the lower portionthereof through a suitable fitting and communication 31.

If desired, pressure may be applied to the contained liquid by connectina steam, water, compressed air, or other uid pipe with a couplin 32 atany suitable location, as on the top 0 the reservoir, said couplingbeing otherwise normally closed by a seatin cap.

The construction and operation of t 1e de vice will be readilyunderstood from the foregoing description. It enables the operator toaccurately control and observe the operation of the feedat all times soas to avoid waste or insuflicient supply. It operates to feed duringmaintenance of suction and to automatically cease operation uponcessation of suction.

The device is comparatively simple in coi1- struction, reliable andefiicient in operation, not liable to get out of order, and efi'eots amaterial econoniy in the use of the compound, While providing foraccurate regulation to suit local conditions as to the character of theWater being supplied to the boiler, etc.

It may be made in various sizes, proportions or designs to suit theconditions or requirements of use, and the invention may be changed orvaried by the skilled mechanic without departure from the scope of thefollowing claims.

What I claim is:

1. In a feed device for liquid, the combination wot a reservoir havin aninterior transverse shell forming the inner wall of the-reservoir andprovidinga central clearance opening, a feed pipe adapted for connectionwith a suction creating device extending upwardly throu 11 said shellbeyond the reservoir and provi ed Within said shell with an upwardlyseating check valve, a

chambered sight feed casing connected with I the upper end of said'pipe,a circulation controlling valve connected with said casing, and a pipeconnected with the other side of said valve and extending downwardlyWithin to the bottom portion of the reservoir and provided with aterminal gravity seating check valve, substantially as set forth.

2. In a feed device for liquid, the combination of a reservoir having aninterior transverseshell providing a clearance opening, a feed pipeadapted for connection with a suction-creating device extending upwardlythrough said shell beyond the reservoir, a chambered sight feed casingconnected with the upper end of said pipe, a circulation controllingvalve connected Withsaid casing, and a pipe connected with the otherside of said valve and extending downwardly Within to the bottom portionof the reservoir and provided with a check valve, substantially as setforth.

In testimony whereof I hereunto affix my signature in the presenceof-two Witnesses.

JOSEPH WILLIAMS, JR.

I lVitnesses: y

C. M. CLARKE,

Fmann STAUB.

